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Sintering or frittage is the process of compacting and forming a solid mass of material by pressure [1] or heat [2] without melting it to the point of liquefaction. Sintering happens as part of a manufacturing process used with metals, ceramics, plastics, and other materials. The atoms/molecules in the sintered material diffuse across the ...
Liquid phase sintering is a sintering technique that uses a liquid phase to accelerate the interparticle bonding of the solid phase. In addition to rapid initial particle rearrangement due to capillary forces, mass transport through liquid is generally orders of magnitude faster than through solid, enhancing the diffusional mechanisms that drive densification. [1]
He contributed greatly to methods for processing ceramics, particularly sintering, a method for creating objects out of powders by heating them until they bond. [5] He wrote a series of books on ceramics, culminating in Introduction to Ceramics, a book that became the "founding treatise" for ceramics. [6] Kingery became a full professor in 1962.
Simulation of the outside of the Space Shuttle as it heats up to over 1,500 °C (2,730 °F) during re-entry into the Earth's atmosphere Bearing components made from 100% silicon nitride Si 3 N 4 Ceramic bread knife. Ceramic engineering is the science and technology of creating objects from inorganic, non-metallic materials. This is done either ...
Compaction of ceramic powders is a forming technique for ceramics in which granular ceramic materials are made cohesive through mechanical densification, either by hot or cold pressing. The resulting green part must later be sintered in a kiln. The compaction process permits an efficient production of parts to close tolerances with low drying ...
Unfired clay is a common example of a green body. A green body is an object whose main constituent is weakly bound clay material, usually in the form of bonded powder or plates before it has been sintered or fired.
Additionally, nanocrystalline ceramics have been shown to sinter more rapidly than bulk ceramics, leading to higher densities and improved mechanical properties, [5] although extended exposure to the high pressures and elevated temperatures required to sinter the part to full density can result in coarsening of the nanostructure.
The temperature was held for some time, probably at about 945 °C (1,733 °F), to assure a complete melting and sintering of the fine-particled paint slip. [11] Subsequently, the temperature sank below the sintering (vitrification) point of the painted slip again, while still in a reducing atmosphere. [ 12 ]